where mig_into_to is the dependent variable (1/0) that represents
migrants/stayers in this case. The balance of variables are hypothesized to
related to the migration decision, such as educational degree, marital
status, origin region, and so on. The out(atincdiff) variable represents
the income effect (difference in after tax income between start and end
period of the data). I have also used the pstest command to look at the

pairing effects.

I would like to have Stata calculate the average effect for migrants and
stayers based on the psmatch2 results (or I guess its mean wage of
matched treated / matched controls), but am unsure how to do this.